40481980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:395

約数の個数: 96

約数和(自身を含む): 107476992

約数和(自身を除く): 66995012

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 97, 110, 140, 154, 194, 220, 271, 308, 385, 388, 485, 542, 679, 770, 970, 1067, 1084, 1355, 1358, 1540, 1897, 1940, 2134, 2710, 2716, 2981, 3395, 3794, 4268, 5335, 5420, 5962, 6790, 7469, 7588, 9485, 10670, 11924, 13580, 14905, 14938, 18970, 20867, 21340, 26287, 29810, 29876, 37345, 37940, 41734, 52574, 59620, 74690, 83468, 104335, 105148, 131435, 149380, 184009, 208670, 262870, 289157, 368018, 417340, 525740, 578314, 736036, 920045, 1156628, 1445785, 1840090, 2024099, 2891570, 3680180, 4048198, 5783140, 8096396, 10120495, 20240990, 40481980]

約数ペア:

[(1, 40481980), (2, 20240990), (4, 10120495), (5, 8096396), (7, 5783140), (10, 4048198), (11, 3680180), (14, 2891570), (20, 2024099), (22, 1840090), (28, 1445785), (35, 1156628), (44, 920045), (55, 736036), (70, 578314), (77, 525740), (97, 417340), (110, 368018), (140, 289157), (154, 262870), (194, 208670), (220, 184009), (271, 149380), (308, 131435), (385, 105148), (388, 104335), (485, 83468), (542, 74690), (679, 59620), (770, 52574), (970, 41734), (1067, 37940), (1084, 37345), (1355, 29876), (1358, 29810), (1540, 26287), (1897, 21340), (1940, 20867), (2134, 18970), (2710, 14938), (2716, 14905), (2981, 13580), (3395, 11924), (3794, 10670), (4268, 9485), (5335, 7588), (5420, 7469), (5962, 6790)]